﻿using System;
using System.Collections.Generic;
using System.Diagnostics.CodeAnalysis;
using System.Linq;
using System.Security.Principal;
using System.Web;
using System.Web.Mvc;
using System.Web.Routing;
using System.Web.Security;
using MvcApplication1.Models;

namespace MvcApplication1.Controllers
    {
    public class AccountController : Controller
        {

        public IFormsAuthenticationService FormsService { get; set; }
        public IMembershipService MembershipService { get; set; }

        protected override void Initialize(RequestContext requestContext)
            {
            if (FormsService == null) { FormsService = new FormsAuthenticationService(); }
            if (MembershipService == null) { MembershipService = new AccountMembershipService(); }

            base.Initialize(requestContext);
            }

        // **************************************
        // URL: /Account/LogOn
        // **************************************

        public ActionResult LogOn()
            {
            return View();
            }

        [HttpPost]
        public ActionResult LogOn(LogOnModel model, string returnUrl)
            {
            if (ModelState.IsValid)
                {
                if (MembershipService.ValidateUser(model.UserName, model.Password))
                    {
                    FormsService.SignIn(model.UserName, model.RememberMe);
                    if (Url.IsLocalUrl(returnUrl))
                        {
                        return Redirect(returnUrl);
                        }
                    else
                        {
                        return RedirectToAction("Index", "Home");
                        }
                    }
                else
                    {
                    ModelState.AddModelError("", "The user name or password provided is incorrect.");
                    }
                }

            // If we got this far, something failed, redisplay form
            return View(model);
            }

        // **************************************
        // URL: /Account/LogOff
        // **************************************

        public ActionResult LogOff()
            {
            FormsService.SignOut();

            return RedirectToAction("Index", "Home");
            }

        // **************************************
        // URL: /Account/Register
        // **************************************

        public ActionResult Register()
            {
            ViewBag.PasswordLength = MembershipService.MinPasswordLength;
            return View();
            }

        [HttpPost]
        public ActionResult Register(RegisterModel model)
            {
            if (ModelState.IsValid)
                {
                // Attempt to register the user
                MembershipCreateStatus createStatus = MembershipService.CreateUser(model.UserName, model.Password, model.Email);

                if (createStatus == MembershipCreateStatus.Success)
                    {
                    FormsService.SignIn(model.UserName, false /* createPersistentCookie */);
                    return RedirectToAction("Index", "Home");
                    }
                else
                    {
                    ModelState.AddModelError("", AccountValidation.ErrorCodeToString(createStatus));
                    }
                }

            // If we got this far, something failed, redisplay form
            ViewBag.PasswordLength = MembershipService.MinPasswordLength;
            return View(model);
            }

        // **************************************
        // URL: /Account/ChangePassword
        // **************************************

        [Authorize]
        public ActionResult ChangePassword()
            {
            ViewBag.PasswordLength = MembershipService.MinPasswordLength;
            return View();
            }

        [Authorize]
        [HttpPost]
        public ActionResult ChangePassword(ChangePasswordModel model)
            {
            if (ModelState.IsValid)
                {
                if (MembershipService.ChangePassword(User.Identity.Name, model.OldPassword, model.NewPassword))
                    {
                    return RedirectToAction("ChangePasswordSuccess");
                    }
                else
                    {
                    ModelState.AddModelError("", "The current password is incorrect or the new password is invalid.");
                    }
                }

            // If we got this far, something failed, redisplay form
            ViewBag.PasswordLength = MembershipService.MinPasswordLength;
            return View(model);
            }

        // **************************************
        // URL: /Account/ChangePasswordSuccess
        // **************************************

        public ActionResult ChangePasswordSuccess()
            {
            return View();
            }

        }
    }
